Machine for winding coils



Feb. 27, 1934.

c. H. THRDARSON Er AL MACHINE Fon WINDING coILs BYY ATToRNEYg x Feb.27,- 1934.

BY-OgwwL/OM 175 ATTORNEYJ Feb. 27, 1934.

c. H. THoRDARsON Er AL MACHINE FO WINDING. ICOILS FiledV Feb.' 24, 193017 Sheets-Sheep: 5

KTM@

A TToRNEx/.S

Feb. 27, 1934. c. H. 'rHoRDARsoN m- Al. 1,948,776

MACHINE FOR WINDING ACOILS File'd ya?. 24, 1930 A 17 sheets-sheet 4ATTORNEYJ.

Feb., 27"1934 c.H. THoRDARsoN ET AL MACHINE FOR WINDING COILS w.myuwwh-s. .5 5 www; Wv .m o 31ml, m m 1 @M /mm vm w 0 ,a n m. .f V4. wmfp l? j Feb 27, 1934- c. H. THoRDARsoN Er AL 1,948,776 MACHINE FORWINDING oolLs Filed Feb. 24, 1930 l'T Sheets-Sheet 6 IN VEN Z'ORS:

d w m JWM ,wrm 7 P Y wwf ,f N

CYV

Feb.v 27, 1'934. c. H. THoRDARsoN 5T AL 1,948,776

MACHINE FOR WICNDING COILS Filed Feb. 24, 1930 A TTORNEYS Fcl. 27, 1934.

C. H. THORDARSON ET AL MACHINE FOR WINDING COI-LS Filed Feb. 24, 1930 1vsheets-snee? s L l l 1.7i wij.. C

A TTORNEY-S'.

Feb. 27, 1934. c. H. THoRbARsoN ET m.-

'MACHINE FOR WINDING COILS Filed Feb. 24, 1930 17 sheen-sheet 9 MACHINEPQR wINDING coILs v I Filed Feb. 24, 1930 1'( Sheets-Sheet 10 ATTORNEYS,

c. H. THoRDARsoN Er A1. 1,948,776'

MACHINE FOR WINDING COILS 17 ShevetS-SheBt-ll l b N {'S NX 1 INVENTR'ear-Jo@ Feb. 27, 1934.

ATTORNEK',

Feb. 27, 1934.

l c. H. THoRDARsoHE-r AL MACHINE FOR wINDING coILs Filed Feb. 24, 193017 spans-sheet 12 In. A

Feb. 27, 1934.-

4'c:. H. vrrfoRDA/mscqw Er AL 1,948,776

MACHINE FOR wINDIN' coILs Filed Feb. 24, 1930 '17 sheets-sheet 13 l ATTORNEY Febf 27, 1.934- c. H. THRDARSON Er AL '1,948,776

.MACHINE FOB WINDING COILS Filedzeb. 24, 195o `17 sheets-sheety 14ATTORNEYS Fel 27; 1934.

MACHINE Foa WINDING coILs' Filed Feb. 24, 1930 1v sheets-Samet 15 EN mmm'ATTORNEYJ Peb. 27, 1934.

c. H. l-oRDARsoN :JAL

MACHINE FOR WINDING COILS 1'7 Sheets-Sheet' 16 Filed Fe. 24, 1930 Feb.27, 1934.

c. H. THoRDARsoN Er AL MACHINE FOR .WINDING -COILS' 1'7 Sheets-Sheet 17Filed Feb. 24. 1930 adm.

DNN NNN NNN MN INVENTORJ'.

lsatrentecl Feb. 27, 1934 l 1.948.116 nome ron. wmnnw coms chenan.yrumanos. chicago,

'Pear-son; Oak Park, lll., assignors meen-ie manufacturing company.

and 'Oscar A. to Thordar- Chi- cago, `Ill., a corporation of IllinoisApplication renew-y 24, 1930. serial N0. 430,84

11 claims. y (ci. en -1o)l lhis invention relates to an improvedm'achinefor winding coils for electrical purposes, the primary object of thepresent invention being to provide an improved machine of this characterequipped with automatic means providing eiective insulation between thelayers of such' coils. Y

Another object of the invention is the provision of a machine of thecharacter indicated equipped with means for withdrawing sections from aroll of exible insulating material such as paraftin paper andautomatically inserting said sections between the layers of the coilswound upon the machine.

Another object of the invention is the provision of means for varyingthe lengths-of saidinsulating sections to compensate for the constantlyincreasing diameter of the coils.

Other objects will appear hereinafter.

The invention consists in the combinations and arrangements'of partshereinafter described and claimed.l

The invention will be best understood by ref.-

erence to the accompanying drawings forming a part of thisspecification, in which,

Fig. 1 is an end view of a machine embodying the invention; l

Fig. -2 is a front view of the ame taken -on the line 2`-2 of Fig. l;

une -a-s o: Fig. 2;

Fig. 3, a section taken on- Fig. 4, an enlarged section taken on line4--4 of Fig. 2;

5, an enlarged section taken on line 5-5 of Fig. 2; Y Fig.- 6, anenlarged section taken online 6-6 of Fig. 2;

Fig. 7, a section taken on line 7-7 o! Fig. 6: Fig. 8, a section takenon linesv &-8, o1' Figs. 6 and 7; Fig. 9, a section taken on lines 99,of fFigs.

6 and 7;

Fig. 10, a section'taken on line 10-10, of Fig. 6; o Fig. 11, a sectiontaken on lines l1 11, oi' Figs. 6 and 10;

Fig. 12, a section taken on `line 12-12 Fig. 6;

Fig. 13. a section taken on line 13-13 'of Fig.

Fig. 14, a section taken on line l4-14,

Fig. 6; l

Fig.l5, a. section taken on line 15-15, Fis. 14;y Fig'. 16, a sectiontaken on line l-l, of Fig.

Fig. 17, a detail view of the upper end of a reversing lever employed inconjunction with the mechanism for laying the layers of wires on thecoils;

Fig. 18, a diagrammatic section taken :substan-A tially on line 18--18,of Fig. 1'6; t

Fig.' 19, a section taken substantially on line 19-19 `of Fig. 16 withportions broken away for the sake of clearness;

ig. 20, a section taken on line. 20-20, of Fig. 14

' rig. 21,@ detail section through the u'pper portion oi the reversinglever;

22, a detail plan view of the 'main controlling switch of the paperfeeding mechanism shown in a different position from that illustrated inFig. 20; I

Fig. 23. a diagrammatic sectiontaken on line- 2er-23 of Fie. 16;

Fig. 24, a section taken on line 24J-24 of Fig. 14; Fig. 25, a sectiontaken on line 25-25 of Fig. 24;

Fig. 26, a section taken on.' une zes-26.01 Fig. 24;

i 28, a section taken on line -Ztl- 28, o! F18. 24;

Fig. 29, a section taken on line 29-29, o! Fig. 27;

Fig. 30, a section taken on line 30-30 of Fig. 24;

Fig. 31, a section' taken on line :i1-31. of Fig. 27;

Fig. 32, a sectlontaken on line 32-32.' of Fig. 30; v

Fig. 33, a section taken on line 33-33 of Fig. 30:

Fig. 34, a section taken on line 34-34 of Fimi; Y

Fig. 35, a section taken on line 35 35 of Fig. 27;

Fig. 36, a section taken on line 36-36 of Fig. 28;

Fig. 37, a section taken on line 37-37, of Fig. 28; v

Fig. 38, a section `taken Fig. 35;

Fig.` 39, a detail view of a paper cutter or slttc'r employed in themachine;

Fig. 40 a. detail view of a carriage for carrying said paper cutter orslitter; i

Fig. 41, a diagrammatic view illustrating the electric circuits employedin the machine;

Fig. 42, a view similar to Fig. 24, but showing the positions of theoperative parts of the machine on line 384-38, o!

at a little later period;

Fig. 43, a view similar to Fig. 42, but showing the positions @i theparts at a little 4later period; Fig. 44, a view similar to Fig. 43, butshowing the positions of th'e parts at a little later period; Fig. v45,a view similar to Fig. 44, but showing the positions of. the parts at astill later period.

TheV preferred formv of construction as illustrated in the drawingscomprises an operating shaft'50 mounted in the frame of the machine, asbest illustrated in Fig. 6. The shaft 50 is driven by'means of a groovedpulley 51 connected by' a belt 52 with a grooved pulley 53 on the motor-shaft54 of an electric motor 55 mounted as indicated in the frame ofthe machine and provided 21a section taken anime 2'1-2101 Fig. 24;

ment, it will be noted that the operating shaft will be constantlydriven whenever the motor is in operation. A

Cooperating with the shaft 50 is a work mandrel or bar 57 arranged inaxial alignment therewith; said mandrel being provided with an enlargedsocket 58 fitting over a reduced end 59 on shaft 50, a pin 60 engaging asocket as shown, locking said parts against relative rotation. As bestshown in Fig. 27, the other end of the mandrel 57 has a bearing on ayieldable spring-held cone bearing 61 and whereby said mandrel may bereadily removed from the machine by retracting said cone bearing, aswill be readily understood. A stop washer 62 is arranged at -the end ofthe mandrel 57 adjacent the socket 58, resting against a stop pin 63, asshown. VA clamping nut 64 is threaded on the other end of the mandrel 57to cooperate with the washer 62 to serve as a. means for clamping asquare metallic sleeve or tube 65 and square ber tube or cardboard tubesections 66 on said mandrel as indicated in Fig. 27. The cardboardsections 66 constitute the cores for the various coils to be wound onthe machine. /l

As best shown in Figs. 1, 24 and 26, an elongated guide roller 67 isarranged in close cooperative relationship with the mandrel 57, saidguide roller being provided with aI plurality of V-shaped lguide grooves68, there being one of said guide grooves for each of the cardboard coresections on said mandrel. The guide roller 67 is mounted on conebearings 69 at each end thereof, bearing in blocks 70 on the ends ofarms 71 mounted on threaded supporting rod 72 and secured in placethereon by means of lock nuts 73. The ends 74 and 75 of the supportingrod 72 are reduced in diameter as shown and operate freely throughsuitable grooved guide rollers 76 arranged on the frame of the machine,as best shown in Figs. 14, 24 and 26. Individual grooved guide rollers77 are mounted on arms 78 secured to the supporting rod 72 by lock nuts79, one of said guide rollers 77. being positioned in registration witheach o1Y the guide grooves 68 and thus adapted and arranged to guidewires 80 into said grooves 68.

As best shown in Figs. 1, 2, 24 and 26, the wiresn 80 are threaded inthe machine over the guide roller 67 under-the guide rollers 77contacting with controller members 81 passing through wipers 82 overguide rollers 83, under guide rollers 84 to spools or reels 85 mountedon the frame of the machine, as will be readily understood by thoseskilled in this art, and by which arrangement the-wires 80 will be woundor coiled upon the core sections 66 as the mandrel 57 turns or rotates.

As vbest shown in Fig. 26, the end 75 of the supporting rod 72 isconnected by a bar 86 with a plate 87 at the top of a cross head 88,best shown in Fig. 14. The cross head 88 is Supported on guide rods 89sliding through suitable bearings 90 in opposite sides of the casing 91forming a part ofthe frame of the machine. The cross head 88 is providedwith a vertical slot 92 having a slide block 93 vertically adjustabletherein, as best shown in Fig.. 16. The slide block 93 is rendereclreadily adjustable by means of a binding screw 94 passing through aspacing block 95, a ver- 'tical slot 96 in a vertical lever 97 and heldin place by means of a clamping nut 98 and whereby the lever 97 isadjustably secured and connected with the cross head 88. The lever 97 isrigidly secured to a block 99 oscillating freely upon a studv shaft V1,948,776 trolling .the operation thereof. By this arrange- 100 mountedas shown at the bottom of the casing 91. A second vertical lever 101 isalso secured, as shown, to the block 99 and whereby the levers 97 and101 are rigidly secured together. The

lever 101 is made ofthin, wide spring steel so as` to be flexiblelaterally and carries at its upper end two slotted supporting plates 102fitting loosely into notches in the bottom of a block or nut member 103,as best shown in Figs. 19 and 21. The supporting plates 102 are notchedat their upper ends to loosely engage supporting pins 104 in the block103 and whereby the block 103 is given a rocking mounting on the upperend of the lever 101. The block 103 also slides freely on a longitudinalguide bar 105, passing loosely through a slot in said block as shown.The guide bar 105 is supported at opposite ends on rocker arms 106 and107 pivoted on pivot pins 108 mounted lon the sides of the casing 91, asbest shown in Fig. 19, and whereby the block 103 will be nicely guidedin its longitudinal movements and yet free to oscillate longitudinallyand swing laterally.

The arms 106 and 107 are connected by a bail or bent bar 109 whichcompels simultaneous operation or rocking thereof. The block 103 isprovided in opposite sides with threaded recesses or sockets 110 and 111adapted, respectively, to fit and engage a threaded shaft 112 and athreaded portion 113 of the main operating shaft 50 of the machine. Theshafts 112 and 113 are similarly threaded and are connected by means ofgears 114 and 115 so that the shaft 112 will be compelled to rotate in adirection opposite to the shaft 113 but atthe same speed. By thisarrangement, it will be apparent that when the block 103 is moved intoengagement with one threaded shaft, it will be caused to travel in onedirection by the threads thereon; and when swung into engagement withthe other shaft, it will be caused to travel in an opposite direction.

The block 103 being properly secured to the upper end of the lever 101,the movements of said block will impart swinging movements to the saidlever, and, saidswinging movements will serve to oscillate the lever 97and consequently reciprocate the cross head 88. Obviously, reciprocationof the cross head 88 causes corresponding reciprocation of the guideroller 67 and consequent travel of the wires 80 on the core sections 66.It is also obvious that when the direction of movement of the block 103is reversed as indicated, a new layer of wire will be laid or coiledover the first layer.

As best shown in Figs. 14, 18, 19 and 21, the f block 103 carriescentrally at its top a guide lug 115 adapted and arranged to restagainst and travel along the sides of a guide bar 116 mounted in theupper portion of the casing 91. As best shown in Fig. 16, the guide bar116`is supported l between ytwo adjacent parallel supporting bars 117and supported thereon by means of supporting pins 118 and clamped bycentral clamping screw 119 whereby the guide bar 116 is detachablymounted in central position above the block 103. l

Cooperating with the guide plate 116 are two shifting guide springs`120,best shown in Figs. 14, 16`and 18. The guide springs 120 are mounted onthe lbottoms of supporting blocks 121 .slidable on guide bars 122 andadjustably secured thereto i.

so that said lug 'andere will be. forced to travel along one side. orthe other of said guide plate.' As the lug approaches of. This lateralmovement of the guide lug swings the block 103 over into engagement withthe threaded shaft 112, thereby automatically reversing the direction ofmovement of the block 103'. When the other end of the guide plate 116 isapproached; the other shifting spring is en countered by the lug 115 andsaid lug forced vover and around the other end of the guide plate 116,\

thereby forcing the block 103 back into operative engagement with thethreaded shaft 113, again reversing the direction of travel of the block103. As explained above, these motions of the block 103 are imparted tothe guide roller 67, and the wires 80 are thereby caused to be laid orcoiled in layers upon the core sections 66.

Obviously, by substituting plates 116 of different lengths andcorrespondingly adjustingvthe springs 120, the length of longitudinaltravel of the guide roller 67, and consequently the lengths of the coilswound, may be varied as. desired within the limits of the machine'.

The mechanism already described is an elabol ration, extension andimprovement on the machine illustrated and described in the patent toChester H. Thordarson, No. 1,482,592, granted February 5, 1924, andconstitutes no part of the present invention except insofar. as theparts already described cooperate with those to be presently described.

As has'been previously indicated, the lcoils formed on the core sections66 will be laid or wound 'thereon in layers, one layer correspondingwith each longitudinal travel of the block 103. It

is highly desirable to insert insulation between the different layers ofthe coils, and the present invention has special relation to automaticmech- C anism which we have provided for this purpose.

To this end we provide a reciprocatory carriage -124, best shown inFigs. 1, 24, 26 and 27, said carriage being arranged to slide toward andaway\ from the mandrel 57 upon rollers 125 running upon twoparallelsupporting tracks or rails 126 secured at their rear ends, as shown, tothe frame of the machine and cross-connected at their front ends by'aconnecting rod or bar 127.`

Rack bars 128, best shown in Fig. 29, arranged at the lower edges ofopposite sides of thecarriage 124 enmesh with pinions 129 -on atransverse equalizing shaft 130, said arrangement serving to equalizethe travel of opposite sides of the vcarriage and prevent twisting orlcramping thereof on the tracks 126.

' The carriage 1 24 is reciprocated by means of a connectingl rod 131pivoted at .,132 to one side of said carriage and connected at its rearend with a crank pin133 on a fly wheel 134 on a counter shaft 135mounted in standards 136 on the frame of the machine. A frictionalbraking element 135' 'is connected with shaft 135, as best shown in Pig.12, to prevent overrunning or spinning of the parts. As best showninFig. 6,

.the counter'shaft 135 is yconnected by a beveled -4 gear 137 meshedwith a beveled gear 138 on another counter shaft. 139 arranged at rightanglesto the counter shaft 135. The beveled 'gear 138 is loose on theshaft 139 and-.carries a chine.

.tion of the arrow on Fig. 6 whenever the motorj clutch member -140cooperatingV with a clutch member 141 splined to the shaft 139, as bestshown in Figs.'7, 8- and 9. The clutch member 141 carries a loose ring142 pivotally connected. by means of screws 143, with yoke arms 144 atthe upper end of an oscillating lever-145 pivoted at 146 on a standard147 on the frame of the ma- The clutch member 141 is normally pressedtoward engagement with the clutch member 140 by means of a compressionspring 148 imprisoned between the lever 145 and the standard 147. Iheclutch member 141 is normally held in retracted position by means of anotched detent 149 pivoted at 150 in the standard .147, the rear end ofthe detent 149 being connected by a link 151 with an'armature 152pivoted at 153 in cooperative relationship with an' electro-magnet 154.The armature 152 is normally held in elevated position by means of acompression spring 155 engaging a depending arm l156 formedintegrallywith said armature. The shaft 139 carries a worm wheel 1-57meshed with a worm 158 on the motor shaft 54, so that the shaft 139 willbe constantly driven in the direc- 55 is operated. The lever 145 carriesat its upper end a cam plate 159 having a. notch 1604 and an inclinedcam surface 161 cooperating with a lugA or arm 162 on the clutch member140.

The arrangement is such that upon excitation of the magnet 154 thearmature 152 will be drawn downwardly,.thus releasing the detent 149from the lever 145 and permitting the clutch member 141 to engage theclutch member 140, thereby operating the shaft 135 to reciprocate the110 carriage 124. Toward the end of the resulting revolution of shaft135, the lug 162 comes into Icontact with the cam surface 161, therebyforcing the clutch member 141 out of engagement with the clutch member140 to stop the reciproca- 115 tion of the carriage 124 after onecomplete opera- ,tion thereof inwardly and rearwardly "and thenoutwardly and forwardly to original position, as

' will be readily' understood. Thus, at each excitation of the magnet154 the carriage 124 will be 120 caused to perform one completereciprocation and return to original position.

The insulation which is inserted by the machine between the layers 'ofthe coils formed on the core section 66 is in the form of paran 125paper. This paper is furnished in the form of a continuous strip 163wound into'a'roll, as best shown in Figs. 1, 2 and 3. The roll of paperis mounted, as shown, on a shaft 164, being held in position thereon bylmeans'oi removable and 130 adjustable cone bearing blocks 165. At eachend the shaft 164 carries grooved bearing rollers 166 running upon guidetracks or rails 167 projecting forwardly, as shown, from the frame ofthe machine. At their forward ends the tracks 167 135 are provided withnotches 168 adapted and arranged to receive the rollers 166 and servingas a support or rest .for the paper roller when the machine isnot inoperation. At its extreme ends the shaft 164 carries two loosev rings orcollars 146 .tracks 167and whereby compensation is made for theconstantly decreasing diameter of the paper roll as .the paper iswithdrawn therefrom. 15C

